Manipulating data in PDF Files with a program

I am currently doing my thesis, and the gravimetric analysis data I receive from a partner laboratory is in the form of tables in PDF Files. I need to plot the data. It would be tedious if I copy and paste every cell manually, so I decided to automate it using a program.

Here's the instructions I want to implement:
1. Open the PDF File.
2. Save it as a TXT file.
3. Open the data in TXT file (since it has delimeters already.)
4. Sort the data needed.
5. Plot the data.

My question is what is the best programming language that I can use for this task?

2. Relevant equations

3. The attempt at a solution
I decided to use MATLAB since it can open PDF files, it can manipulate data in TXT files, and it can easily plot that data.

However, I do not know how can MATLAB "instruct" Adobe Reader to save the file as TXT file. Is it even possible with MATLAB or other programming language?